467 lines
16 KiB
Python
Executable File
467 lines
16 KiB
Python
Executable File
# -*- coding: utf-8 -*-
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; version 2 of the License.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Library General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, see <https://gnu.org/licenses/>.
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from __future__ import print_function
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import os
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import copy
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import lxml.etree
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def get_variants_dtd(logger=None):
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"""
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Find the DTD for variants file. First look into the system directory, and
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fall back to local directory.
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"""
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variants_dtd = "/usr/share/pungi/variants.dtd"
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if not os.path.isfile(variants_dtd):
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devel_variants_dtd = os.path.normpath(
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os.path.realpath(
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os.path.join(
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os.path.dirname(__file__), "..", "..", "share", "variants.dtd"
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)
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)
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)
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msg = "Variants DTD not found: %s" % variants_dtd
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if os.path.isfile(devel_variants_dtd):
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if logger:
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logger.warning("%s", msg)
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logger.warning("Using alternative DTD: %s", devel_variants_dtd)
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variants_dtd = devel_variants_dtd
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else:
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raise RuntimeError(msg)
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return variants_dtd
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class VariantsValidationError(ValueError):
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pass
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NO_WHITESPACE_ELEMENTS = [
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"arch",
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"environment",
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"group",
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"kojitag",
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"module",
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"name",
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"package",
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]
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class VariantsXmlParser(object):
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def __init__(self, file_obj, tree_arches=None, tree_variants=None, logger=None):
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self.tree = lxml.etree.parse(file_obj)
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with open(get_variants_dtd(logger), "r") as f:
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self.dtd = lxml.etree.DTD(f)
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self.addons = {}
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self.variants = {}
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self.layered_products = {}
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self.tree_arches = tree_arches
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self.tree_variants = tree_variants
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self.logger = logger
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self.validate()
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def _is_true(self, value):
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if value == "true":
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return True
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if value == "false":
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return False
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raise ValueError("Invalid boolean value in variants XML: %s" % value)
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def validate(self):
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if not self.dtd.validate(self.tree):
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errors = [str(i) for i in self.dtd.error_log.filter_from_errors()]
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raise VariantsValidationError(
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"Variants XML doesn't validate:\n%s" % "\n".join(errors)
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)
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errors = []
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for text in self.tree.xpath("//text()"):
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if text != text.strip() and not text.is_tail:
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e = text.getparent()
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if e.tag in NO_WHITESPACE_ELEMENTS:
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errors.append(
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"Tag %s on line %s contains leading or trailing whitespace"
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% (e.tag, e.sourceline)
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)
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if errors:
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raise VariantsValidationError(
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"Variants XML doesn't validate:\n%s" % "\n".join(errors)
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)
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def parse_variant_node(self, variant_node, parent=None):
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variant_dict = {
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"id": str(variant_node.attrib["id"]),
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"name": str(variant_node.attrib["name"]),
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"type": str(variant_node.attrib["type"]),
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"arches": [str(i) for i in variant_node.xpath("arches/arch/text()")],
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"groups": [],
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"modules": None,
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"modular_koji_tags": None,
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"environments": [],
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"buildinstallpackages": [],
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"is_empty": bool(variant_node.attrib.get("is_empty", False)),
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"parent": parent,
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}
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if self.tree_arches:
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variant_dict["arches"] = [
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i for i in variant_dict["arches"] if i in self.tree_arches
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]
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if not variant_dict["arches"]:
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if self.logger:
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self.logger.info(
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"Excluding variant %s: all its arches are filtered."
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% variant_dict["id"]
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)
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return None
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for grouplist_node in variant_node.xpath("groups"):
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for group_node in grouplist_node.xpath("group"):
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group = {
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"name": str(group_node.text),
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"glob": self._is_true(group_node.attrib.get("glob", "false")),
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"default": None,
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"uservisible": None,
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}
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default = group_node.attrib.get("default")
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if default is not None:
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group["default"] = self._is_true(default)
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uservisible = group_node.attrib.get("uservisible")
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if uservisible is not None:
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group["uservisible"] = self._is_true(uservisible)
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variant_dict["groups"].append(group)
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for modulelist_node in variant_node.xpath("modules"):
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variant_dict["modules"] = variant_dict["modules"] or []
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for module_node in modulelist_node.xpath("module"):
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module = {
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"name": str(module_node.text),
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"glob": self._is_true(module_node.attrib.get("glob", "false")),
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}
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variant_dict["modules"].append(module)
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for kojitag_node in modulelist_node.xpath("kojitag"):
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kojitag = {
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"name": str(kojitag_node.text),
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}
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variant_dict["modular_koji_tags"] = (
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variant_dict["modular_koji_tags"] or []
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)
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variant_dict["modular_koji_tags"].append(kojitag)
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for environments_node in variant_node.xpath("environments"):
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for environment_node in environments_node.xpath("environment"):
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environment = {
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"name": str(environment_node.text),
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"display_order": None,
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}
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display_order = environment_node.attrib.get("display_order")
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if display_order is not None:
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environment["display_order"] = int(display_order)
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variant_dict["environments"].append(environment)
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for buildinstallpackages_node in variant_node.xpath("buildinstallpackages"):
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for package_node in buildinstallpackages_node.xpath("package"):
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variant_dict["buildinstallpackages"].append(package_node.text)
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variant = Variant(**variant_dict)
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if variant.type == "layered-product":
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release_node = variant_node.xpath("release")[0]
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variant.release_name = str(release_node.attrib["name"])
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variant.release_version = str(release_node.attrib["version"])
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variant.release_short = str(release_node.attrib["short"])
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contains_optional = False
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for child_node in variant_node.xpath("variants/variant"):
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child_variant = self.parse_variant_node(child_node, variant)
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if not self.add_child(child_variant, variant):
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continue
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if child_variant.type == "optional":
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contains_optional = True
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has_optional = self._is_true(variant_node.attrib.get("has_optional", "false"))
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if has_optional and not contains_optional:
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optional = Variant(
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id="optional",
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name="optional",
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type="optional",
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arches=variant.arches,
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groups=[],
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parent=variant,
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)
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self.add_child(optional, variant)
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for ref in variant_node.xpath("variants/ref/@id"):
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try:
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child_variant = self.parse_variant_node(self.addons[ref], variant)
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except KeyError:
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raise RuntimeError(
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"Variant %s references non-existing variant %s" % (variant.uid, ref)
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)
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self.add_child(child_variant, variant)
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# XXX: top-level optional
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# for ref in variant_node.xpath("variants/ref/@id"):
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# variant["variants"].append(copy.deepcopy(addons[ref]))
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return variant
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def _is_excluded(self, variant):
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if self.tree_variants and variant.uid not in self.tree_variants:
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if self.logger:
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self.logger.info(
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"Excluding variant %s: filtered by configuration." % variant
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)
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return True
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return False
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def add_child(self, child, parent):
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if not child or self._is_excluded(child):
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return None
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parent.add_variant(child)
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return child
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def parse(self):
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# we allow top-level addon definitions which can be referenced in variants
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for variant_node in self.tree.xpath("/variants/variant[@type='addon']"):
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variant_id = str(variant_node.attrib["id"])
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self.addons[variant_id] = variant_node
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for variant_node in self.tree.xpath(
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"/variants/variant[@type='layered-product']"
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):
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variant_id = str(variant_node.attrib["id"])
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self.addons[variant_id] = variant_node
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for variant_node in self.tree.xpath("/variants/variant[@type='variant']"):
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variant = self.parse_variant_node(variant_node)
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if not variant or self._is_excluded(variant):
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continue
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self.variants[variant.id] = variant
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return self.variants
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class Variant(object):
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def __init__(
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self,
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id,
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name,
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type,
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arches,
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groups,
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environments=None,
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buildinstallpackages=None,
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is_empty=False,
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parent=None,
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modules=None,
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modular_koji_tags=None,
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):
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environments = environments or []
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buildinstallpackages = buildinstallpackages or []
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self.id = id
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self.name = name
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self.type = type
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self.arches = sorted(copy.deepcopy(arches))
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self.groups = sorted(copy.deepcopy(groups), key=lambda x: x["name"])
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self.environments = sorted(copy.deepcopy(environments), key=lambda x: x["name"])
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self.modules = copy.deepcopy(modules)
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if self.modules:
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self.modules = sorted(self.modules, key=lambda x: x["name"])
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self.modular_koji_tags = copy.deepcopy(modular_koji_tags)
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if self.modular_koji_tags:
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self.modular_koji_tags = sorted(
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self.modular_koji_tags, key=lambda x: x["name"]
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)
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self.buildinstallpackages = sorted(buildinstallpackages)
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self.variants = {}
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self.parent = parent
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self.is_empty = is_empty
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self.pkgsets = set()
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self.arch_mmds = {}
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self.module_uid_to_koji_tag = {}
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self.nsvc_to_pkgset = {}
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def __getitem__(self, name):
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return self.variants[name]
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def __str__(self):
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return self.uid
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def __repr__(self):
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return 'Variant(id="{0.id}", name="{0.name}", type="{0.type}", parent={0.parent})'.format( # noqa: E501
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self
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)
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def __eq__(self, other):
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return self.type == other.type and self.uid == other.uid
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def __ne__(self, other):
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return not (self == other)
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def __lt__(self, other):
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ORDERING = {"variant": 0, "addon": 1, "layered-product": 1, "optional": 2}
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return (ORDERING[self.type], self.uid) < (ORDERING[other.type], other.uid)
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def __le__(self, other):
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return self < other or self == other
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def __gt__(self, other):
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return not (self <= other)
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def __ge__(self, other):
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return not (self < other)
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def __hash__(self):
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return hash((self.type, self.uid))
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@property
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def uid(self):
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if self.parent:
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return "%s-%s" % (self.parent, self.id)
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return self.id
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def add_variant(self, variant):
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"""Add a variant object to the child variant list."""
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if variant.id in self.variants:
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return
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if self.type != "variant":
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raise RuntimeError("Only 'variant' can contain another variants.")
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if variant.id == self.id:
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# due to os/<variant.id> path -- addon id would conflict with
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# parent variant id
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raise RuntimeError(
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"Child variant id must be different than parent variant id: %s"
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% variant.id
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)
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# sometimes an addon or layered product can be part of multiple
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# variants with different set of arches
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arches = sorted(set(self.arches).intersection(set(variant.arches)))
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if self.arches and not arches:
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raise RuntimeError(
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"%s: arch list %s does not intersect with parent arch list: %s"
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% (variant, variant.arches, self.arches)
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)
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variant.arches = arches
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self.variants[variant.id] = variant
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variant.parent = self
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def get_groups(self, arch=None, types=None, recursive=False):
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"""Return list of groups, default types is ["self"]"""
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types = types or ["self"]
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result = copy.deepcopy(self.groups)
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for variant in self.get_variants(arch=arch, types=types, recursive=recursive):
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if variant == self:
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continue
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for group in variant.get_groups(
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arch=arch, types=types, recursive=recursive
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):
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if group not in result:
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result.append(group)
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return result
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def get_modules(self, arch=None, types=None, recursive=False):
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"""Return list of modules, default types is ["self"]"""
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if self.modules is None:
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return []
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types = types or ["self"]
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result = copy.deepcopy(self.modules)
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for variant in self.get_variants(arch=arch, types=types, recursive=recursive):
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if variant == self:
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continue
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for module in variant.get_modules(
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arch=arch, types=types, recursive=recursive
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):
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if module not in result:
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result.append(module)
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return result
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def get_modular_koji_tags(self, arch=None, types=None, recursive=False):
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"""Return list of modular koji tags, default types is ["self"]"""
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if self.modular_koji_tags is None:
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return []
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types = types or ["self"]
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result = copy.deepcopy(self.modular_koji_tags)
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for variant in self.get_variants(arch=arch, types=types, recursive=recursive):
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if variant == self:
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continue
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for koji_tag in variant.get_modular_koji_tags(
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arch=arch, types=types, recursive=recursive
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):
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if koji_tag not in result:
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result.append(koji_tag)
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return result
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def get_variants(self, arch=None, types=None, recursive=False):
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"""
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Return all variants of given arch and types.
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Supported variant types:
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self - include the top-level ("self") variant as well
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addon
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variant
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optional
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"""
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types = types or []
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result = []
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if arch and arch not in self.arches + ["src"]:
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return result
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if "self" in types:
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result.append(self)
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for variant in self.variants.values():
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if types and variant.type not in types:
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continue
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if arch and arch not in variant.arches + ["src"]:
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continue
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result.append(variant)
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if recursive:
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result.extend(
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variant.get_variants(
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types=[i for i in types if i != "self"], recursive=True
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)
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)
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return result
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def get_addons(self, arch=None):
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"""Return all 'addon' child variants. No recursion."""
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return self.get_variants(arch=arch, types=["addon"], recursive=False)
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def get_layered_products(self, arch=None):
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"""Return all 'layered-product' child variants. No recursion."""
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return self.get_variants(arch=arch, types=["layered-product"], recursive=False)
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def get_optional(self, arch=None):
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"""Return all 'optional' child variants. No recursion."""
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return self.get_variants(arch=arch, types=["optional"], recursive=False)
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